Most likely it’s a dynamic component, if you have SketchUp Pro and familiar with Dynamic Attributes, you can modify them to not snap or just delete that Attribute. But be careful because who know what other attributes are referencing to it.
If you have SketchUp Make, you can’t modify the attributes, but you can just go in and explode that part you want, regroup it, and it’ll delete the attributes. *Be sure to explode all the parts of the drawer (it may have separate dynamic components like the handle, or hinges, etc), otherwise those part’s attributes may affect their position.